Evidence map›Paper›PMID 34253803›Full record

ArticleScientific reports2021

From head micro-motions towards CSF dynamics and non-invasive intracranial pressure monitoring.

Arnošt Mládek, Václav Gerla, Petr Šeba, Vladimír Kolář, Petr Skalický, Helen Whitley, Lenka Lhotská, Vladimír Beneš, Ondřej Bradáč

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.4field-weighted citation impact, top 34% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. Non-Invasive Intracranial Pressure Monitoring.Journal of clinical medicine · 2023
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Arnošt MládekDepartment of Neurosurgery and Neurooncology, 1St Faculty of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic.
Václav GerlaDepartment of Cognitive Systems and Neurosciences, Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University, Prague, Czech Republic.
Petr ŠebaDepartment of Physics, University of Hradec Králové, Hradec Králové, Czech Republic.
Vladimír KolářDepartment of Technical Development, LINET Spol. S.R.O, Slaný, Czech Republic.
Petr SkalickýDepartment of Neurosurgery and Neurooncology, 1St Faculty of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic.
Helen WhitleyDepartment of Neurosurgery and Neurooncology, 1St Faculty of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic.
Lenka LhotskáDepartment of Cognitive Systems and Neurosciences, Czech Institute of Informatics, Robotics and Cybernetics, Czech Technical University, Prague, Czech Republic.
Vladimír BenešDepartment of Neurosurgery and Neurooncology, 1St Faculty of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic.
Ondřej BradáčDepartment of Neurosurgery and Neurooncology, 1St Faculty of Medicine, Charles University in Prague and Military University Hospital, Prague, Czech Republic. ondrej.bradac@uvn.cz.
Czech Technical University in Prague · CZCharles University · CZMilitary University Hospital Prague · CZLinet (Czechia) · CZUniversity of Hradec Králové · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Continuous monitoring of the intracranial pressure (ICP) is essential in neurocritical care. There are a variety of ICP monitoring systems currently available, with the intraventricular fluid filled catheter transducer currently representing the "gold standard". As the placement of catheters is associated with the attendant risk of infection, hematoma formation, and seizures, there is a need for a reliable, non-invasive alternative. In the present study we suggest a unique theoretical framework based on differential geometry invariants of cranial micro-motions with the potential for continuous non-invasive ICP monitoring in conservative traumatic brain injury (TBI) treatment. As a proof of this concept, we have developed a pillow with embedded mechanical sensors and collected an extensive dataset (> 550 h on 24 TBI coma patients) of cranial micro-motions and the reference intraparenchymal ICP. From the multidimensional pulsatile curve we calculated the first Cartan curvature and constructed a "fingerprint" image (Cartan map) associated with the cerebrospinal fluid (CSF) dynamics. The Cartan map features maxima bands corresponding to a pressure wave reflection corresponding to a detectable skull tremble. We give evidence for a statistically significant and patient-independent correlation between skull micro-motions and ICP time derivative. Our unique differential geometry-based method yields a broader and global perspective on intracranial CSF dynamics compared to rather local catheter-based measurement and has the potential for wider applications.

Indexed as

AdultAgedBrain Injuries, TraumaticFemaleHumansIntracranial HypertensionIntracranial PressureMaleMiddle AgedMonitoring, PhysiologicSkullYoung Adult

Identifiers

PMID34253803
PMCPMC8275772
OpenAlexW3179082907

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.